for each subsection change. this shows just my sections for the first table of contents (which makes it a lot shorter) and then for subsequent outlines, hides all the subsections completely, for sections that i am not in. the other sections are covered, just transparent, and the other subsections in the current section are transparent as well. so it highlights my current section and subsection, and keeps it all on one slide.

That's a nice solution, the only problem I have with it, is that the content moves after the first initial table of contents (I agree I'm nitpicking). But when I don't find another solution I will probably use this anwer.
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CommuSoftMar 12 '12 at 17:22